Directions

Lightly butter large microwavable bowl. Combine sugar, sour cream, butter and coffee mixture in prepared bowl. Microwave at HIGH 5 to 6 minutes or until boiling, stirring after 2-1/2 and 5 minutes.

After sugar mixture comes to a full rolling boil, microwave at HIGH 5 to 6 minutes more until mixture reaches soft-ball stage (234°F) on instant-read or candy thermometer, stirring after 3 minutes. (Do not microwave mixture with thermometer.)

Let stand until firm. Remove from pan by lifting fudge and foil using foil handles. Place on cutting board; cut along score lines into squares. Remove foil. Garnish, if desired. Store in airtight container at room temperature.